<template>
	<div class="login_bg">
		<div class="login_adv login_bg_gradual" >
			<div class="login_adv__title">
				<h2>Future</h2>
				<h4>{{ $t('login.slogan') }}</h4>
				<p>{{ $t('login.describe') }}</p>
				<div>
					<span><el-icon><sc-icon-vue /></el-icon></span>
					<span><el-icon class="add"><el-icon-plus /></el-icon></span>
					<span><el-icon><el-icon-eleme-filled /></el-icon></span>
				</div>
			</div>
			<div class="login_adv__bottom">
				© {{'APP_NAME'}} {{'APP_VER'}}
			</div>
		</div>
		<div class="login_main">
			<div class="login_config">
				<el-button :icon="config.theme=='dark'?'el-icon-sunny':'el-icon-moon'" circle type="info" @click="configTheme"></el-button>
				<el-dropdown trigger="click" placement="bottom-end" @command="configLang">
					<el-button circle>
						<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 512 512"><path d="M478.33 433.6l-90-218a22 22 0 0 0-40.67 0l-90 218a22 22 0 1 0 40.67 16.79L316.66 406h102.67l18.33 44.39A22 22 0 0 0 458 464a22 22 0 0 0 20.32-30.4zM334.83 362L368 281.65L401.17 362z" fill="currentColor"></path><path d="M267.84 342.92a22 22 0 0 0-4.89-30.7c-.2-.15-15-11.13-36.49-34.73c39.65-53.68 62.11-114.75 71.27-143.49H330a22 22 0 0 0 0-44H214V70a22 22 0 0 0-44 0v20H54a22 22 0 0 0 0 44h197.25c-9.52 26.95-27.05 69.5-53.79 108.36c-31.41-41.68-43.08-68.65-43.17-68.87a22 22 0 0 0-40.58 17c.58 1.38 14.55 34.23 52.86 83.93c.92 1.19 1.83 2.35 2.74 3.51c-39.24 44.35-77.74 71.86-93.85 80.74a22 22 0 1 0 21.07 38.63c2.16-1.18 48.6-26.89 101.63-85.59c22.52 24.08 38 35.44 38.93 36.1a22 22 0 0 0 30.75-4.9z" fill="currentColor"></path></svg>
					</el-button>
					<template #dropdown>
						<el-dropdown-menu>
							<el-dropdown-item v-for="item in lang" :key="item.value" :command="item" :class="{'selected':config.lang==item.value}">{{item.name}}</el-dropdown-item>
						</el-dropdown-menu>
					</template>
				</el-dropdown>
			</div>
			<div class="login-form">
				<div class="login-header">
					<div class="logo">
						<img :alt="'www'" src="@/assets/logo/logo_2.png">
						<label>Future-Electron</label>
					</div>
					<h2>{{ $t('login.signInTitle') }}</h2>
				</div>
				<el-form ref="loginForm" :model="ruleForm" :rules="rules" label-width="0" size="large">
					<el-form-item prop="username">
						<el-input v-model="ruleForm.username" prefix-icon="el-icon-user" clearable :placeholder="$t('login.userPlaceholder')"/>
					</el-form-item>
					<el-form-item prop="password">
						<el-input v-model="ruleForm.password" prefix-icon="el-icon-lock" clearable show-password :placeholder="$t('login.PWPlaceholder')"/>
					</el-form-item>
					<el-form-item style="margin-bottom: 10px;">
						<el-row>
							<el-col :span="12">
								<el-checkbox :label="$t('login.rememberMe')" v-model="ruleForm.remember"></el-checkbox>
							</el-col>
							<el-col :span="12" style="text-align: right;">
								<el-button type="text">{{ $t('login.forgetPassword') }}？</el-button>
							</el-col>
						</el-row>
					</el-form-item>
					<el-form-item>
						<el-button type="primary" style="width: 100%;" :loading="islogin" round @click="handleLogin">{{ $t('login.signIn') }}</el-button>
					</el-form-item>
				</el-form>

				<el-divider>{{ $t('login.signInOther') }}</el-divider>
				<div class="login-oauth">
					<el-button size="medium" circle><svg-icon icon-class="wechat"/></el-button>
					<el-button size="medium" circle><svg-icon icon-class="qq" /></el-button>
				</div>
			</div>
		</div>
	</div>
</template>

<script>
	export default {
		data() {
			return {
				ruleForm: {
					username: 'admin',
					password: 'admin123',
					remember: true
				},
				rules: {
					username: [
						{required: true, message: this.$t('login.userError'), trigger: 'blur'}
					],
					password: [
						{required: true, message: this.$t('login.PWError'), trigger: 'blur'}
					]
				},
				islogin: false,
				config: {	lang: 'zh-cn',	theme: 'default'},
				lang: [{	name: '简体中文',	value: 'zh-cn'},	{	name: 'English',	value: 'en'	}]
			}
		},
		watch:{
			'config.theme'(val){
				document.body.setAttribute('data-theme', val)
			},
			'config.lang'(val){
				this.$i18n.locale = val
				this.$TOOL.data.set("APP_LANG", val);
			}
		},
		created: function() {
			console.log('%c Future %c 欢迎使用FE框架', 'background:#666;color:#fff;border-radius:3px;', '')
		},
		methods: {
			async handleLogin() {
				this.$refs.loginForm.validate((valid) => {
				if (valid) {
					this.loading = true;
					this.$store.dispatch("Login", this.loginForm).then(() => {
						// await 需要同步的方法
						this.loading = false;
						this.$message.success("Login Success 登录成功")
						this.$router.push({ path: "/" });
					})	.catch(() => {
						this.loading = false;
					});
				} else {
					console.log("error submit!!");
					return false;
				}
				});
			}
			,configTheme(){
				this.config.theme = this.config.theme=='default'?'dark':'default'
			},
			configLang(command){
				this.config.lang = command.value
			}
		}

	}
</script>

<style scoped>
	.login_bg {width: 100%;height: 100%;background: #fff;display: flex;overflow: hidden;}
	/* .login_bg_gradual{background-image: url("@/assets/demo/img/bg2.jpg"); color: #ffffff;} */
	.login_bg_gradual{ color: #ffffff;}
	.login_adv {width: 33%;height: 95%; background-color: #555;background-size: cover;background-position: center center;background-repeat: no-repeat;position: relative;}
	.login_adv__title {color: #fff;padding: 40px;}
	.login_adv__title h2 {font-size: 40px;}
	.login_adv__title h4 {font-size: 18px;margin-top: 10px;font-weight: normal;}
	.login_adv__title p {font-size: 14px;margin-top:10px;line-height: 1.8;color: rgba(255,255,255,0.6);}
	.login_adv__title div {margin-top: 10px;display: flex;align-items: center;}
	.login_adv__title div span {margin-right: 15px;}
	.login_adv__title div i {font-size: 40px;}
	.login_adv__title div i.add {font-size: 20px;color: rgba(255,255,255,0.6);}
	.login_adv__bottom {position: absolute;left:0px;right: 0px;bottom: 0px;color: #fff;padding: 40px;background-image:linear-gradient(transparent, #000);}

	.login_main {flex: 1;overflow: hidden;display:flex;}
	.login-form {width: 400px;margin: auto;padding:20px 0;}
	.login-header {margin-bottom: 20px;}
	.login-header .logo {display: flex;align-items: center;}
	.login-header .logo img {width: 105px;height: 105px;vertical-align: bottom;margin-right: 10px;}
	.login-header .logo label {font-size: 24px;}
	.login-header h2 {font-size: 24px;font-weight: bold;margin-top: 50px;}
	.login-oauth {display: flex;justify-content:space-around;}
	.login-form .el-divider {margin-top:40px;}

	.login_config {position: absolute;top:20px;right: 20px;}
	.el-dropdown-menu__item.selected {color: var(--el-color-primary);}

	@media (max-width: 800px){
		.login_main {display: block;}
		.login-form {width:60%;padding:20px 40px;}
		.login_adv {display: none;}
	}
</style>
